Nope. Whom’st and whomst’d aren’t really words, but they are a good way to get a chuckle. Often, people think “whom” is a snooty, pretentious word that is some academic form of “who.” Well, it’s not; it’s actually a necessary word and used differently than “who.”

You can impress your colleagues when you use them correctly! Here’s how:

Use “who” to refer to the subject of the sentence.

Use “whom” to refer to the object of a verb or preposition.

See, there we go again, we need to know our parts of speech and how they function in the sentence in order to select the correct word. If you’re old enough, you might remember when they taught grammar in second grade and we had to diagram sentences (shudder).

And, here’s a little cheat sheet! If you can substitute he/she for the word, use “who.” If you can substitute him/her for the word, use “whom.”